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Native Plants: Blue Winged Wasps to Control Japanese Beetles!

Angely here! 🐝

Did you know that nature has its own way of controlling Japanese Beetles? 🌎


Huzzah for the native Blue Winged Wasps! ⚔️


They are not aggressive and are here to let their babies eat the Japanese Beetle (𝘗𝘰𝘱𝘪𝘭𝘭𝘢 𝘫𝘢𝘱𝘰𝘯𝘪𝘤𝘢) grubs that destroy your grass!These wasps take low-level flights in the grass to search for beetle grubs. 🛩


They sting and paralyze the grub, and then they lay their eggs on the grub's body. When the egg hatches, the wasp larva feed until the grub is no more. 😋


I have all three of these plants in my native garden and my backyard is full of Blue Winged Wasps! Their wings are a beautiful iridescent blue and they are my biological pest control!💗


👩🏽‍🌾️If you're driving down Columbus Rd heading away from Mt Vernon you've probably seen the fields of Goldenrod and you can rest assured that they are attracting mother nature's wasps to help a farmer out!

Native Plants Featured:

- Common Goldenrod (Solidago canadensis)

- Common Boneset (Eupatorium perfoliatum)


 
 

Fascinating Facts About the Blue-Winged Wasp: Nature's Hidden Gem

The blue-winged wasp, Scolia dubia, may not be as widely known as honeybees or bumblebees, but this stunning creature plays a vital role in our ecosystems. With their iridescent blue wings and black-and-orange bodies, these wasps are a sight to behold, often prompting curiosity and awe. Beyond their striking appearance, the blue-winged wasp boasts a fascinating life cycle and unique behaviors. Let’s dive into some of the most interesting facts about this remarkable insect.

1. Parasitic Behavior for the Greater Good

Female blue-winged wasps lay their eggs directly onto beetle larvae in the soil. Once the eggs hatch, the wasp larvae consume the beetle grubs from the inside out—a gruesome, but effective, method of survival. The wasp larvae develop inside the host until they are ready to pupate, after which they emerge as adult wasps, continuing the cycle. This parasitic relationship is vital for keeping beetle populations in check without the use of harmful pesticides.

2. Solitary, Yet Sociable Pollinators

Unlike social wasps such as yellowjackets or paper wasps, blue-winged wasps are solitary insects. Each female takes care of her own offspring without the help of a colony. However, they are highly efficient pollinators. You can often find them buzzing around flowers in search of nectar, particularly during late summer and early fall. Their ability to pollinate while also controlling beetle populations makes them a double benefit for ecosystems.

3. Mimicking a Threat

Blue-winged wasps are known for their vibrant black and orange bodies, which resemble more aggressive wasp species like the notorious paper wasps. However, blue-winged wasps are generally non-aggressive and rarely sting unless threatened. This mimicry, known as Batesian mimicry, helps deter predators who mistake them for more dangerous species. Their bold colors act as a visual warning, but these wasps are more interested in foraging and hunting than picking fights.

4. Masters of Flight

One of the blue-winged wasp's most eye-catching features is, of course, its iridescent blue wings. These translucent, jewel-toned wings not only add to their visual appeal but also make them strong fliers. They can hover above flowers with precision and agility, rivaling bees in their ability to collect nectar. When sunlight hits their wings, the blue shimmer creates a mesmerizing display, earning them their name and making them easy to spot in gardens and meadows.

5. A Late Summer Guest

If you've spotted a blue-winged wasp in your garden, it's probably late summer or early fall. This is when these wasps are most active, searching for flowers to pollinate and grubs to parasitize. Unlike some other insect species that are active throughout spring and summer, blue-winged wasps have a shorter window of activity. Their appearance signals the waning days of summer, just before many flowers begin to fade.

6. Beneficial, Not Harmful

Many people instinctively fear wasps, associating them with stings or aggressive behavior. However, blue-winged wasps are not aggressive toward humans. In fact, they are more interested in their ecological duties than interacting with people. Unless provoked, they pose little risk to humans, and their presence should be welcomed rather than feared. Their role as both pollinators and pest controllers is critical for maintaining a balanced ecosystem.

7. Found Across Eastern North America

Blue-winged wasps are widespread across the eastern United States, from southern Canada all the way down to Florida. They thrive in a variety of habitats, including gardens, meadows, and wooded areas. Despite their wide distribution, they often go unnoticed because of their solitary nature and relatively short active season. However, with their striking coloration, they’re hard to miss once you know what to look for!

8. Attracting Them to Your Garden

Want to attract blue-winged wasps to your garden? Plant nectar-rich flowers such as milkweed, goldenrod, and clover, which are favorites of these wasps. Providing a diverse array of flowering plants that bloom in late summer will encourage their presence. Not only will they pollinate your garden, but they may also help reduce pest populations, providing a natural solution to controlling grubs and beetles in your soil.



The blue-winged wasp is a remarkable, yet often overlooked, insect that plays a critical role in natural pest control and pollination. With their stunning blue wings, non-aggressive nature, and pest management abilities, they are a vital part of the ecosystem that deserves more recognition. So the next time you spot a blue-winged wasp in your garden, take a moment to appreciate the beauty and benefits of this unsung hero of nature!

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